Japanese Dragonflies of the Family Calopterygidae with the Descriptions of Three New Species and One New Subspecies

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Japanese Dragonflies of the Family Calopterygidae with the Descriptions of Three New Species and One New Title Subspecies

Author(s) OGUMA, Kan.

Citation The journal of the College of Agriculture, Tohoku Imperial University, Sapporo, Japan, 5(6), 149-163

Issue Date 1913-08-20

Doc URL http://hdl.handle.net/2115/12516

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Hokkaido University Collection of Scholarly and Academic Papers : HUSCAP 'J~p~nesecDragonflies 'of the Fatt:lily, C~lopter,yg~~ae ," ,1".[ " . . " with the Descripttonsof

_~ r .,; \: ,,; ~"':. "'-. " Three .New .Species and One, New' Subspecies.

By· .

Ran Oguma,

This paper is based chiefly upon the Shldy of th~ sp~cimens pre:"e-!-,':~-? in the entomological laboratory of the college and partlY,also of my. ,o,wn collection as weI1 as of those sent by my friends fro~ different 'parts .of .;Tapan. The species recorded as indigenous to Japan by previous 3lLthors are elcwll in llumpe.r, . but my presellt study shows, that six more species ,W'cur .in our country. Of these 17 species five are found ill Japal;t proper frO\ll Hokkaido to Kiu5hill; while the rest are exdllsively .confined"to, ~u~ ,tropical partil of Japan - Loo-Choo, Form03a and Bonin Is!and~. Fortlte sake of cOllveniellee, they will be called respectively palaearcti? ~'ld subtr?}1jcal ,~peeies. in the descriptions of this paper. They are as follows:-

1. Palaearcticspecies. 1. Calopte1"!p' virgoLIN:N~US...... ,.;- Japan, Europ~. 2. C. cornelia SE(.YS. .' ...... •...... Jap~~l. 3. C. atl'ata SELYS. .. .. , ...... ,." ... , ... : J!l~an. 4.JJiiwis stl"igata RAG EX...... , .... Japan. ,5. fo[aeopfdcMa. svpre8tes SEL vs. II. Subtropical species. 6. JJlal1'oha nigripectus SELYS. ,...... Formosa, ·Chrmi.. 7·.' jiI.: bcih~'lU1·i8SELYS. r.: .. :· ', ... ~ ...... '.' Loo~Choo,Chilla. S; .Psolodesmlfs:·maiulrlrin'lis MCiLACHLAN~ ...... ·c.' ... Formosa; Chil'ia". 150 K. OGUMA.

9. P . d01'othca WILLIA~rsox ... , ,", .. , ". Loo-Choo, Formosa. 10. ..i"t.Fnais tenuis OGU)IA. , ...... ' ...... Formesa. 11. JJ£evl'obasis cllinensis I JIXNNUS. , .. , .. Loo-Choo?, China, E. India. 12. E'uphaea jormos(( HAGEN ..... , .. ,' ...... Foemosa. 13. E. yayeyamana MATsmIUHA. ,.. ,., .... , ... , ..... ,.. Loo-Choo. 14. Bayadera hyalina SEJ.NS...... ' ... ,...... Formosa. 15. Rhynocypha 14-1l1aculaia OGUMA ...... , .. Bonin Islands. 16. R. ogasawarensis J\'[ATSmIURA ...... Formosa, E. India. 17. ..ilEicrome1'us linea ius BURMEISTER. All of the palaearetic speciE's exhibit wide ranges of distribution in

Japan proper, except the first which has not yet been fulmd ill Hoklwidll , most of them being noted for their beneficial influellce on the rice culture as they devour the injurious insects of the rice plants. Of the subtropical speciE'S Rhynocypha ogas(luxl1'ellsis occurs in the Bonin Islands only, and the rest are fonnd in Loo-Choo and in Formosa. 'The islands of Loo-Choo are of importance as regards the distribl.1tion of dl'agonflies, as in the case' of other insects, inasmuch a~ they form the con- . necting link or steppiilg stones between Formosa and Japan propel'. In Loo-Choo are found many species of this family which are also found in Formosa, but it is noteworthy that thl?r~ is no species common both to these islands and to ,Japan proper. The Formosa Strait on the other llllnd seems to form no barrier in the distribution of CalopterygidaE>, since the species are most frequently met with in Formo"a are also found upon the Asiatic continent. The channel called Bashi Channel which sparatcs Formosa from Philippine" however acts qnite cO:lltl'd1'Y, as fur as this Elmily is concerned; one is not able to fiild even a 'single species common to both islands' Though tiny in area, the Bonin Islands widdy scatterrd in the Pacific Oce!ll1 are also fam011s in consequence of their peculiar fauna, since PRY}~R collected the pretty butterlly, Lycaena ogasawaraf1lsis during his stay in Japan. I have two of the most peculiar spccies of dragonflies. from thosc islands, one of'tbelll belonging to the family Caloptcrygidae.The demarkatioll line which fcparates Loo-Choo from KillShill should be extended estward and JAPANESE DRAGONFLIE::l OF THE FAMILY CALOPTERYGIDAE. 151

must include the Bonin Islands in the region to which Loo-Choo and Formosa belong. The Kurile Islands and Saghalin can be disl'egarded in considering the

distribution of Clliopterygidae, smce 110 single specimen has been obtained from those regions. I w;sh to t'xpress my sincerest thanks to Pro£ Dr. M. NL'\''1'SUMURA f r his constant aid and kind ad dces during my stndy on odonatology. My obligations are also due to Messel's UCHIDA, FUKUDA, YANO and KmIURA. for their kindness in putting thtir collections at my disposal.

Key to the Japanese Calopterygidae.

A Wings longer than abdomen, frons pr~jected forming a large tubercle. B 1\£1-3 and 1\1j arising from a single point on the AI'. fflic1'(Ymel·u8. BB M:-3 and 1\1J widely apart in the start ... Rhynocypha. AA 'Wings shorter than abdomen, frons not projected. B Body stout, with the coloration of a Gompll1ls. . .. Pa[aeophlebia. BB Body slender like an Agrionid.

C Subq uadn1llgle slightly bent at the arculns, 1\11_4 arising from the middle or upper part of' the latter. D Quadrangle and basal radial space crossed ...... , Euphaea. DD Quadrangle and basal radial space free from eross nernlres Bayaclera

CC Snbquadrangle neady straight, M I_3 and M4 arising from the lower part of the arcnlus. D True pterostigma prC'sent. E Quadrangle with 10 or more cross llernlres P8olodcSIIlUS. EE Quadrangle with only 4 or 5 cross llenures ... J.lfnais. DD True ptcrostigma obse~t. E M2 and 1\1;1 bifurcated ... Kevrobasi8. EE M2 and M3 simple. F Basal space reticulated .. Jlatrona. FF Ba!'al space fl're from cross nernll'cs3 ' Calopteryx. 152 K. OGUMA.

Order ODON A TA. Suborder ZYGOP TERA. Family CALOPTER YGIDAE.

Genus Calopteryx LEACH.

1. Calopteryx virgo LINNEUS ..

Libellttla virgo Linn., Syst. Nat.!. p. 545 (1758). Colopteryx j'aponica SEINS, SOIlOp. Calop. add. II. p. 3 (1869). Calopteryx virgo ?"ace j'aponica SELYS, Ann. Soc. Ent. Belg. XXVII. p. 128 (1883). Nom. Jap. Aoba-lombo. Loc. Homhiu, Shikoku?, Kiushiu.

2. Calopteryx cornelia SELYS.

C'alopteryx comelia SELY:;, Synop. Calop. add. II. p. 4 (1867). Nom .•Jap. JJ1iyama-kawa-tombo. Loc. Hokkaiclo, HOIlShill, Shikoku?, Kiushin.

3. Calopteryx atrata SELYS.

Caloptm'Yx atrata SELYS, SYllOp. Calop. p. 16 (1853). Nl:m. Jap. Hagu1'o-tombo. Loc. Hokkaido, Honshiu, Shikoku?, Kiushiu.

Genus Matrona SELYS.

4. Matrona nigripectus SELYS.

JIairona mgripectus SELYS, Synop. Calop. add. IV (1879). Nom. Jap. Taiwan-hagul'o-tombo., Loc. Formosa.

5. Matrona basilaris SELYS.

J.£!tJ'Q1W basil(wis SELYS,.synop. Calop. p. 17 (1853). . " " SELYS, Odon. Loo-Choo, p. 5 (1888). JAPANESE DRAGONFLIES OF THE FAMILY CALOPTEHYGIDAE. 153

Nom. Jap. Rittkiu-.'wguro-tombo: Loc. Loo-Choo. As has previously menthonf'd by SELYSl\ the form from Loo-Chooshows quite a different appearance compared with the typical form. It ,differs from the latter by its smaller size, and also by its thorax never having yellow parts but beeing greenish black and having no streaks on the l

Genus Psolodesmus MCLAcHLAx.

6. Psolodesmus mandarinus J\:IcLASCHLAN.

PsolodesmU8 l1la1Ubrinu8 McI~AXCHLAX, Trans. Ent. Soc. Lond. II. p. 167 (1870).

~om. Jap. 8hiroobi-kmva-Iombo. Loc. Formosa. The type specimen was first collected in Amoy, and afterwards HAGEl'/ showed that the Fame i'pecies occurs also in Formosa. There are three specimens in the collection of the entomological laboratory of the college, but unfortunately it is quite unknown to whom their collection is due.

7. Psolodesmus dorothea WILLIAMSO~.

PsolodesJlw8 di"othea WILLLUIS0X, Ent. New. XV. pp. 247-250 (HlO!): Xom. Jap. Kinuba-kmva-lombo. Loc. Formosa (LOOllJIS, MATSUMURA).

7a. Psolodesmus dOl'othea kuroiwae MAT3UMURA. subsp. nov.

Length of the abdomen '0 44mm. ~ 42mm. Length of the hind wing '0 37.:.40mm. ~ 3Znim. . Length of the pterostigma '0 2.5mm. ~ 1.5mm. 1) Odon. Loo-Choo, p. 5. .154 K. OGUi\fA .

This subspecies IS ea,i]y distinguiEl1abie from the type III the fbllowing points. 1. Size much smaller. 2. Head, thorax and 1-2 segments of the abdomen dull bron;.';, ,,,hile metallic green ill th:) type. 3. In the male, wings without pearly reflection, not smoked along the costa and the ap:cal opaque area highly reduced, only the small part beyond pterostigma brownish. In the :fi'ma~e, wings faintly smoked and the apical bpaque area being much ~malleI'. The lack of iridescent nature in the wings of males is the most important peculiarity to separate this sub3pedes from the type. It might sometimes be taken as a distinct species wheneyer the details are not sufficiently studied. Kom . .Tap. KU1'oiwa-kawa-tombo. Loc. Loo-Cheo (KUROIWA).

Genus Mnais SELYS.

Thrce speCIes belonging to the present genu~ ha\'e been known to (lCCtH· ill ,Tapan, 'Liz. JJl1wis strigata, Jljnais }Jl'uinos(t and ~Vn((is costaZis. All of tl1('~l were first describ2d hy SELYS although the first had been authorized

1 by HAGEx; to SELYS, howeyer, the femels ) of the last two were utterly unknown. By comparing the wing color only, theSe three, if be males, are easily distinguishable each othel', but whene\'er we intend to sparate them by the femaleil only, then we always find much perplexity thereon. They 11Iwe, ill the ;females, the wings of similar color, so they ha\'e a similar appearance to the males of .ilfnais strigata except the ('0101' of pterostigma. The three species li\'e nlways in the same places, at least 1II. sl1'igata ]If. consiaZi8, in my observation, ~linglillg each other along stream" conseqnently whene\'er the one is fOllnd the other can whithollt exception be met with. I ha\'e occasionally caught the. c(,Hlples of both species in copulation, but the attempt to distinguish them by ~~~ales only was in vain. After much consideration I wish now to combine thept into olle species recognizing the polymorphic nature in males [ .. )" .

1) Tlwy are presen'ed in the college-collection in :t l:trgt' . lot. ·TAPAXESE DHAGONFLIES OF THE FAMILY CALOPl'ERYGIDAE. 155 nilcl to characterize them as follows.

8. Mnais strigata HAGEN.

J1Inais stl'igata SELYS, Synop. Calop. p. 20 (1853). JInais pl'uinos(t (male) SELYS, Synop. Calop. p. 20 (1853) . .;lEwis costalis (male) SELYS, Synop. Calop. add. II. p. 7 (1869) .. l1Inais pl'1tinosa mcecosialis, SELYS, Ann. Soc. Ent. Belg. XXVII.p. ] 29 (1883). . Length of the abdomen '0 40-45mm. ~ 35-40mm . Length of. the hind wing o 35-38mm. ~ 35-38mJll, . Length of the pterostigma '0 1.8-2mm. ~ 1.5-2mm~ :Male. Polymorphic in wing color. Body metallic green or greenish blne, dencely pruinosed in adult specimens, exept latenal sides of thethornx. The both sides of the labrum, n patch on the first joint of antenna, a small part Oil coxa and two streaks on the metepimeron dull yellow. Legs black. Upper anal appendages also black, blunt tipped, curved inwards with seven or eight spincs of indefinite size along their outer margins. 'Wings vary according to forms as I am going to mention below, pteratigma long, in ntriably red in color.

(1.. fypica (HAGEN) OGmfA. (PI. 1. fig. 3).

'Vings hyaline, often f:lintly suffused with pale yellow, nervurcs dark browlI. I take this species as the typical form, not ouly by its simph'st color like females, bllt also being priorly described.

(1. costalis SELYS. (PI. 1. fig. ]-2).

'Vings hyaline, distal three fourths bright saffron with an opaque part of brick color along the costa, the nervurcs dark brown, but those imb,2dJed in the colored part likewise saffron.. . In the most of specimens the 0p\lql1e part not extended to the pterostigma distally and to :Mz, at most, poste~~jor1y, but 'J ]Iaye a siJ~gle specimen in which trle opaque part greatly elong~tec1~ reaching up to pterostigma in one direction, while surpassing Al in other ,lID6 K; OGUMA.

dit·ection. This aberrant spec-llnen wa$ collected at Nllyoro (I-Iokkuido); by Mr. J(Ol\IURA.

,. p'!f'ltinosa SEL YS.

Wings hyaline;' slightly tinged with yellow in the half way to nodus, the dist~l part ;froril it' of chestnut color, being paler towards the tips, at ,the costa and ~enter of celis. Ken'urea dark brown,tiIese in the dark colored region paler. 'Of these 'three' for~s ~he last, as far as I am aware, is confined in distribiltioil to -Kiushiu, while the other two are very common in any part of Japa~ proper. . Female. Just like the a-form of male, only the body somewhat bronzy 'colored; pt~rostig;na white. No distinct forms are represented corresponding

J td the three forms of male.

Nom. Jap. Yanagi-tombo (a-form). Kawa-lo11lbo (,3-form).

- J Chairo-kawa-tombo (,-form). Loc. Hokkaiclo, Honshiu, ShikQku, Kiushiu,

9. Mnais tenuis OGUMA. sp, no\'.

(Textfig. 1.)

Length of theabc10men '0 45-46mm. Sf. 40 42mm. Length of the hina wing 'O'35-38mm. Sf. 36-37mm. Length of the pterostigma '(5' 1.2-1.5mm. Sf. 1mm. Male. Body: metaJlicgreen, densely powdered with white on the n>rtcx, ,frontal part of the thorax including scapulae, basal parts of legs and the fir~t . . . .' ,tlll;ee,segments a~, well aEi. t11e last four segments of abdomen.]) , Thorax ;Th~ part below the second stigma and the whole metepimeron ',j, "". " ' ,eJ?:tirely pale straw yellow. Wings ,bright brownish saffron, only paler to- '-\v\lrds the qt,adrangle, nervnres deeper. hi color; but the costa blackish; , ~ .' , . .' .

) In thill-poi~t" this,sPRCies reseinbles '~o. ~7)[n((i8 'anael~son.i llIcJ.AcIU,AN, JAPANESE DRAGONFLIES OF THE FAMILY CALOPTERYGIDAE. 157

pterostigma moderately long, n10re than twice as long as the breadth, the inner side stronly oblique, red, and followed by one row of cells. The whole surface of the wing with an intensi;;'e'reflection of pearly' violet. Legs black. Abdomen: slender, a faint yeHow speck. on the anterior end of the second segment laterally.

Textfig. 1. a, Thurax with anterior abdominal segments; b, appendages c, d, wings.

Female. Body likely colored, but not powdered. Wings uniformly tinged with pale brownish saifron, with strong iridenscence as males, nervures "yellowish brown, only the costa 'deeper. Pterostigma white. .Abdomen with a yellow speck on the second segment as male" but larger and more conspicuous. Nom. Jap. Taiwan-kawa-tomho. Loc. Formosa (MATSUMURA). 158 K. OGUlI.U.

This splendid and delicate species of JInais was collected in Formosa by Prof. MATsmIURA in four male and two female specimens. The fact that the poststigmatic cells are arranged in one row indicates some relations to the continental species-lIf. andel'soni and 111. em'shawi, but on the other hand the long stigma of this species shows the near relation to the insular species as M. strigaic6. As being mentioned above, this species is sharply distinguished from other Japanese JInais by huying entirely yellow epimeron and by the color of the wings, especially by their strong iridescent nature.

Genus Nevrobasis LIN~EUS. 10. Nevrobasis chinensis LINNEUS.

Libellula chinen.sis SIN~., Lyst. Nat. I. p. 545 (1758). Nevl'obasis chinensis SELYS, Synop. Calop. p. 18 (1883). Nom. Jap. Afoguro-kawa-tombo. Lac. Loo-Choo (doutful).

Genus Euphaea MCLACHLAN.

11. Euphaea formosa HAGEN. (Textfig. 2, b)

Euphaea j01"l1l0S(6 SELYS, Synop. Calop. adel. III. p. 16 (1869). a E1phaca j01"1nos(6 Ris, Suppl. Entom. I. p. 52, figs. 4, 5 (1912). X om. J ap. Nakalwgw'o-tombo. Loc.· Formosa.

12. Eupnaea yayeyamana b MATSOIURA.Sp. noy. . . (Textfig. 2, a.) Length of the abdomen 'O'31-32mm. ~ 26mm. Length of tlle fore wing '0 27-29mm. ~ 26mlll.

Text fig. 2. JAPANESE DRAGONFLIES OF THE .FAMILY CALOPTERYGIDA.E. 159

IJength of the hind wing 0 24-26mm. ~ 25mm. Length of the pterostigma 0 5i?- 2.5mm. ]i"'orm and color like the preceding species, but differs from it in the following points. 1. Size much smaller in both sexes. 2. Male. Hind wing not so strongly dilated, the opaquc band much more reduced-its proximal end lies far distally from nodus.

3. :Male. }"'Ol'C wing with a black speck at the apex. 4. Male. Thc terminal four segments of the abdomen black. 5. Female. Color of the hind wing palcr. 6. Female. The yellow dots on the last two abdominal segments smaller and inconspiruou.s.

N OIll. Jap. J{o-nakaJl([gw·o-tombo. Loc. Loo-Choo.

Genus Bayadera SELYS. 13. Bayadera hyalina SELYS. Bayadc1'a hyalina SELYS, Synop. Calop. add. IV. p. 27 (1879). " " RIS, SuppI. Ent. I. p. 50. Textfig. 3. T. IV. fig. 1 (1912). Nom. .Tap. Hirne-kawa-tombo. Loc. Formosa (SAUTER, MATsmIURA).

Genus Rhynocypha RAl\fBUR.

14. Rhynocyyha 14-maculata OauMA. sp. nov. (Textfig. 3.)

Length of t]le abdomen () 19mm. Length of tlle hind wing 0 23mm. Length of the pterostigma -0 2.5mm. Male. Head: black, two small spots ncal' the eye.s and a long marking along the posterior margin yellowish white. Labium whitish, scarcely black tipped. 160 K. OGUlHA.

Thorax: black, with blue spots and stripes arranged as follows:- a spot just below the scapula, an elongated spot on the upper part of the first coxa, three broad bands on the side, of which the first on the mesepimeron, the recond on the metepisternum connected with the first above the coxae, the third on the metepimeron occuping nearly the whole area of it. Metasternum black with two pairs of yellowish dots. Legs black, the inner sides white. Wings moderately hroad; fore wings hyaline in the proximal two thirds' of the whole length, and the apical part from it black, this opaque part being prolonged proximally along the costa to the second antenodal, and a narrow space at the hind margin paler as we see frequently in many of other species of 'this genus. Hind wings hyaline in nearly balf way to apex, the distal half black with three rows of vitreous markings; of which the first serie" represented by merely one and prolonged into the hyaline portion; the sccolld series consists of three markings, the middle of which being the largest and including two rows of cells, while the other two contain merely one row of cells; the third series composed of also three, the middle one contains one row of cells, and the other two contain three rows of cells in each, and the uppermQst being the longest; a narrow portion, moreover, at the hind inargill 'pale and, iridescent. Pterostigma black.

Textfig. 3.

Abdomen: black, with blue markings on the side3 of the segments 1- 8, those on the first segment beill~ large and triangular in form,. those on the second segment long, linear form, and those on the third to eighth smaller, . . roundish in form. Upper. anal appelldag~s longer than the 9th segment, the low~r short. . ,'FeUla.le. U11kuown . . ',J :, , Nom. Jap. Suldba-hanadakcL-tombo. Loc. Formosa (MATsmmRA). JAPANESE DRAGONFLIES OF THE FAMILY CALOPTERYGIDAE. 16~

15. Rhynocypha ogasawarensis MATSUMURA. sp~ nov. (Textfig. 4) ',1 Length of the abdomen '() 20-21.5mm. ~ 18-19mm. Length of the hind wing '() 24-26mm. ~ 25mm. Length of the pterostigma '0' 2.5mm-3mm. ~ 2.4mm. Head: glossy black, the anterior side of the basal joint of the antenna, a large spot below it and the sides of the labrum straw yellow; on the yertex with a pair of oblong yellowish spots between the ocelli and the eyes, and another pair of small spots in similar color very close to eyes. Male. Thorax: black, with two narrow yellowish st~eaks at the. sides, . !. stretching along the first and the third lateral suture;;, a small,similarly colored spot on. the upper part of the mesepisternum. and met~imeron. 'Wings narrow and long; fore wings hyaline, Sl,.Tffllsed with dark yellow, the very apical part scarcely colored; the hind .;inis also hyaline; but being . , somewhat deeper in color, the apical one :fifth hlackish; pterostigma brown.

Textfig.4.

" \'

Ab:Iomen: rather depressed, dorsal surfa,ce, ,dark red, \"hile the ventrrtl . ,,',. I I surface and the ,~utures of 8egments black. Upper anal appendages slender, '" ' . •. J nearly as long as the 9th segment, curved iriwardly, black in color; the '. : I,ower neatly tl,l~ half the length of the uppe,r. alid also black. . " Fem~le. 'Thorax: si~ilarly colored with the niale, bllt '~ith"~or~ a ;pair . . .', .::::'," i,: :(t") . of thready red stripes on the front of the mesothoraxand a "large speck on the metepimeron at sides. \Vings hyaline, much deeply colored than the male, wanting the black part at all. Abdomen: not depressed as in the male, the dorsal snrfiwe reddish brown, the ventral surface, the sutures of the segments and long spots near the 162 K. OGU1\IA. posterior margin of each segment bluck. The3e black spots occasionally so enlarged as to take place of the red portion. Segments 9 & 10 almost black, anal appendages twice as long as the tenth segment, sharply pointed and brownish in color. Nom. Jap. EIanadaka-to11lbo. Lac. Bonin Islands or Ogasawarnjima (MATSU.MUHA).

Genus Micromerus RAMRUR.

16. Micromerus lineatus BURJIEISTEH. J1iC1'omeTUS rineatus RAlIm., Ins. Nevr. p. 238 (1842). " "SELYS, Synop. Calop. p. 65 (1853). " " WILLIAMSON, Proc. U. S. Nat Mus. XXVIII. p. 171. figs. 5 & 6 (1904). Nom. Jap. Hime-hanadaka-t01nbo. Loc.. Form03a (MATsmrunA).

Genus Palaeophlebia SELYS.

17. Palaeophlebia suprestes SELl'S. Palaeophlebia sllpl'estes SELYS, C. B. Soc. Ent. Belg. XXXIII. T. :2 (1889). Nom. ,Tap. lIPllkashi-tombo. Loc. Hokkaido (Sapporo, MATSUMURA), Honshin (Kyoto, SUZUIU), Kiushin (Hikosan, TAKA CHIHO). It is very interesting fact to know that this species is wielely distrihntecl in Japan, though yery rare an any part of these localities.

Jl{((1'c/t, 1913. JAPANESE DRAGO:NFLIES OF THE FAMILY CALOPTERYGIDAE. 163

Explanation of tIle plate X.

Fig. 1. Left wings of .Llfnais strigata costalis (0'). Fig. 2. An aberrant form of the same (1)). Fig. v.C) Right wings of the ~~Inais st1-igatCt typica (0'). Fig. 4. Right wings of .11fnais strigata (~).

Pl. X.

1 ERRATA. Page, Line, 150 4 for FoemoRa read Formosa the last est ward eastward 151 7 dnring dnring 26 ob~ent absent 153 3 menthoned been mentioned 11 MCLANCHLAN " MCLACHLAN 12 21 dj'othea " durothea 155 17 pteragtigma pterostigma